/Engine/Source/Editor/KismetCompiler/Public/KismetCompilerMisc.h
If the net is a literal, it validates the default value and registers it. Returns true if the net isnota literal, or if it's a literal that is valid. Returns false only for a bogus literal value.
bool ValidateAndRegisterNetIfLiteral ( [FKismetFunctionContext](API\Editor\KismetCompiler\FKismetFunctionContext) & Context, [UEdGraphPin](API\Runtime\Engine\EdGraph\UEdGraphPin) * Net )